package cn.demoxy.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * @auther demo
 * @date 2022/8/29 9:58
 * 用来从spring容器里获取bean
 */
@Component
public class SpringContextUtils implements ApplicationContextAware {


    private static ApplicationContext applicationContext;


    @Override
    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;
    }


    public static Object getBean(String name) {
        return applicationContext.getBean(name);
    }


    public static <T> T getBean(Class<T> requiredType) {
        return applicationContext.getBean(requiredType);
    }


    public static <T> T getBean(String name, Class<T> requiredType) {
        return applicationContext.getBean(name, requiredType);
    }


    public static boolean containsBean(String name) {
        return applicationContext.containsBean(name);
    }


    public static boolean isSingleton(String name) {
        return applicationContext.isSingleton(name);
    }


    public static Class<? extends Object> getType(String name) {
        return applicationContext.getType(name);
    }
}
